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A. NEILSON & J. TAYLOR.

OIL SPRAY 0R VAPOR LAMP. No. 397,745. I Paltented Feb. 12, 1889.

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UNITED STATES ATENT FFICE.

ALEXANDER NEILSON, OFINKERMANN, COUNTY OF REXFREV, AND JAMES TAYLOR, OF LINLITHGOIV, COUNTY OF. LINLITHGOVV, SCOTLAND.

om SPRAY on VAPOR LAMP.

SPECIFICATION forming part of Letters Patent No. 397,745, dated February 12, 1889.

Application filed July 24, 1888. Serial No. 280,883.

To CLZZ 111700717, it may concern:

Be it known that we, ALEXANDER NEILSON and JAMES TAYLOR, subjects of the Queen of Great Britain and Ireland, and respectively residents of Inkermann, in the county of Benfrew, and Linlithgow, in the county of Linlithgow, both places being in Scotland, have invented certain Improvements in Oil Spray or Vapor Lamps, of which the following is a specification.

Our said invention has for its object to improve the construction and action of oil spray or vapor lamps of the kind described in the specification of our United States patent,

dated May 1., 1888, No. 382,106, and which are designed for being worked with steam or compressed air, so as to produce oil spray or vapor which is burned for illuminating or heating purposes.

Figure 1 oi the accompmnying drawings is an elevation of our improved oil spray or vapor lamp, and Fig. 2 is a corresponding vertical section.

In carrying out our present invention we employ a vertical burner-body consisting of three parts, a bottom part, 3, into the top of which is screwed a main jet-tube, 4, having screwed upon it an upper outer body-piece, o. The jet-tube l is made with a central bore 0 h aving a small hole at its bottom end for the admission of steam or compressed air, the bore widening toward the top orifice, U. The oil-supply pipe 7, which extends up from a tank or receiver, 8, is connected to the upper bo(ly- )iece, 5, at. one side, the oil passing to the interior oi the jet-tubc et through a small hole made through from a groove formed round the jet-tube, and which forms a communication between the oil-supply pipe 7 and 0 the hole. The admission of the oil is regulated by a conical valve formed on the inner end of a spindle, 9, which, entering through a striding-box, is screwed into a part formed on the body-piece 5. The valve-spindle 9 is turned by means of a hand-wheel, 10, fixed on it. A similar sm-ew-spiinlle, 11, with a handwheel, 12, and which enters through a stuffingbox into the lower body-piece, 3, has a conical valve-point on its inner end for regulating the passage of the steam or compressed air (N0 model.)

into the bottom end of the j et-tube 1. A hori zontal or slightly-dished flange or disk, 13, is screwed upon the upper end of the jet-tube 4, and above this disk there is a combustionchamber, 1 1, formed or encompassed by two metal shells, 15 16, the inner one, 15, being of an approximately-globular form and the outer one, 16, dome-shaped. The inner shell, 15, is supported by legs, with its bottom open end raised a little above the disk 13, and with its upper open end extending up into an opening in the outer shell, 16. This outer shell, 16, rests by the edge of its lower cylindrical part upon the disk 13, and within a retainingflange formed on that disk, and holes are formed round the upper part of the shell 16 to admit air, which air being by the action of the burning jet of spray or vapor drawn between the outer and inner shells, 16 15, becomes heated on its way to the flame.

The steam or compressed air for forcing the oil into spray or vapor is superheated by passing it through a coil, 17, of tubing, which is placed so as to encompass the flame as it issues from the top of the shells 16 15. One end 7 5 of the tubing 17 is connected to a supplypipe, 18, (which for convenience is connected by a blin d coupling, 1 Q, to the lower bod y-piece,

3,) and the other end is connected to the lower body-piece, 3. The steam. or compressed air superheated by passing through the coil 17, entering the bottom of the jet-tube t with great velocity, which increases with the gradual widening of the tube, acts on the oil which enters through the lateral hole in the jet-tube and very forcibly projects it in the form of spray or vapor out-ward through the combustion-chamber 14-, so that it issues thence in the form ot' a large and brilliantlyilluminant flame. o

iVhat we claim is An oil spray or vapor lamp in whiehare combined a jet-tube with a bore gradually enlarging from its inner end to its outer orifice,

a supply-inlet and valve for steam or compressed air at the bottom of the jet-tube bore,

a supply-inlet and valve for oil atthe side and between the inner and outer ends-of the jet-tube bore, two shells forming a combustion-chamber in the inner of the two shells,- Ioo In testimony whereof we have signed our IO names to this specification in the presence of two subscribing witnesses.

ALEXR. NEILSON. JAMES TAYLOR.

Witnesses;

EDMUND HUNT, i DAVID FERGUSON. 

